The traditional primary colors are . red and blue blue, green, yellow red, yellow, blue green, orange, violet

The traditional primary colors are blue,red and yellow..

Explanation:

The secondary colors comes from the mixtures of the primary colors because you can only use them by mixing together to create another colors like green, a mix of yellow and blue, orange, a mix of red and yellow and purple a mix of blue and red..And tertiary colors are obtained by mixing with one primary color and one secondary color.

including the octave, the answer would 8 notes in a major scale with one note being played twice. ex) c major scale includes: c, d, e, f, g, a, b, c

notice that c is played twice

however, if you were to ask me how many different notes are in a major scale- the answer would be 7.